import java.util.Scanner;

/**
   Reads a string and counts all vowels contained in that string.
   Vowels are A E I O U a e i o u. 

   Input: the value of s, a string
   Output: the number of all the vowels in s
*/
public class CountVowels
{
   public static void main(String[] args)
   {      
      Scanner in = new Scanner(System.in);
      String s = in.nextLine();

      // your work here    
      String t = "AEIOUaeiou";
      int count = 0;
      for(int i = 0;i < s.length();i++){
          if(t.indexOf(s.charAt(i)) >= 0){
              count++;
          }
      }


      System.out.println(count);
   }
}